Addition
In order to start constructing the house, Charlie and his father needed to gather some wood from the forest. If they initially have 15 extra planks of wood in the house and Charlie and his father got 10 planks of wood each, how many pieces of wood do they have in total?
15 + 10 + 10 = 35 There are 35 planks of wood.
Two of his favorite buildings are Chicago’s Sears Tower and Dubai’s Burj Khalifa. If Burj Khalifa stands at 830 meters high and Sears Tower stands at 527 meters high, how much higher is Burj Khalifa than Sears Tower?
830 – 527 = 303 Burj Khalifa is 303 meters higher than Sears Tower
We ordered 21 pizzas. Each pizza has 8 slices. How many slices of pizza are there altogether?
21 x 8 = 168 There are 168 slices of pizza altogether
She counted her crayons and found out that she has 80 crayons which she will place in crayon boxes. Every crayon box can contain 8 crayons. How many crayon boxes does she need?
80 ÷ 8 = 10 She needs 10 crayon boxes.
Of the 10 books on fairy tales, Gilly borrowed 3. What fraction of the books on fairy tales did she borrow?
3 out of 10 = Gilly borrowed 3/10 of the fairy tale books
While building the house, Charlie noticed that they were running out of nails, so he told his father he is going to buy some. If they still have 9 nails left and Charlie bought 2 boxes of nails, the big one containing 55 nails and the small one containing 31, how many nails will they have?
9 + 31 + 55 = 95 They have 95 pieces of nails.
Rob also compared the Empire State Building and the Petronas Towers. What is the height difference between the two if the Empire State Building is 443 meters tall and the Petronas Towers is 452 meters tall?
452 – 443 = 9 The difference between the heights of the two buildings is 9 meters.
Chris gave his 35 friends 12 pieces of candy each. How many pieces of candy did Chris give his friends?
35 x 12 = 420 Chris gave his friends 420 pieces of candy.
Lexie’s spent 2 hours gathering all of her watercolor paintings. She thought of placing an equal number of paintings in four of the rooms in the house. If Lexie has 32 watercolor paintings, how many paintings will be placed in each of the four rooms?
32 ÷ 4 = 8 There will be 8 paintings to be placed in each of the four rooms.
Luke also checked out books about land and sea animals. There were 20 books on land animals and 4 books on sea animals. He chose to borrow 7 books on animals. What fraction of the books on animals did Luke borrow?
Total number of books on animals = 20 + 4 = 24 Number of books on animals borrowed = 7 Luke borrowed 7/24 of the books on land animals.
To have a more stable treehouse, Charlie’s father decided to tie the corner posts of the house to the tree itself. He used 24 inches of rope for the first post, 20 inches on the second, 14 inches on the third and 12 inches on the fourth. He also had 15 feet of cable but did not use that. How many inches of rope were used?
24 + 20 + 14 + 12 = 70 Charlie’s father used 70 inches of rope.
Having been to Paris, Rob also remembered the Eiffel Tower, which was the tallest structure in the world at the time it was built in 1887. If the Eiffel Tower is 324 meters tall, how much lower is it compared to today’s tallest man-made structure, the Burj Khalifa?
830 – 324 = 506 The Eiffel Tower is lower than Burj Khalifa by 506 meters.
There were 150 bookshelves. Each bookshelf had 15 books. How many books were on the shelves?
150 x 15 = 2,250 There were 2,250 books on the shelves.
Lexie’s younger brother helped pick up all the paper clips in Lexie’s room. He was able to collect 81 paper clips. If he wants to distribute the paper clips in 9 boxes, write an equation showing how many paper clips each box will contain.
81 ÷ 9 = 9 Each box will contain 9 paper clips
The first ingredient was garlic. If Arya prepared 5/12 cup of chopped garlic and Yana prepared 6/12 cup, how much garlic did they prepare in total?
5/12 + 6/12 = 11/12
They prepared 11/12 cup of garlic
The treehouse is almost done; all they need is to paint it. His father estimated that they will use 20 ounces of white paint, 15 ounces of green paint and 34 ounces of brown paint and 6 paintbrushes. How many ounces of paint would they buy in total?
20 + 15 + 34 = 69 They should buy a total of 69 ounces of paint.
Rob also matched the London Eye which stands at 443 feet and Las Vegas’ High Roller standing at 550 feet. The High Roller can fit 40 people in each of its cabins. Being the tallest Ferris wheel in the world, how much taller is High Roller than the London Eye?
550 – 443 = 107 High Roller is taller than the London Eye by 107 feet.
There are 261 fishbowls. Each fishbowl has 23 fish. How many fish are there?
261 x 23 = 6,003 There are 6,003 fish
Marian also baked oatmeal cookies for her 30 classmates. If she can place 12 cookies on a tray at a time, how many trays will she need to prepare 276 oatmeal cookies at a time?
276 ÷ 12 = 23 She will need 23 trays.
Once the preparation was done, they started to cook the ground meat that their father bought. If their dad bought 3/12 kg of ground pork and 8/12 kg of ground beef, how much meat do they have in total?
3/12 + 8/12 = 11/12 Their father bought 11/12 kg of meat
Upon finishing the treehouse, Charlie’s mother served them freshly baked cookies. If Charlie ate 15 cookies, his father ate 10 and his mother only ate 5, please write an equation to show how many cookies were eaten in total?
15 + 10 + 5 = 30 There were 30 cookies eaten.
Lastly, Rob compared Canada’s CN Tower and Seattle’s Space Needle. How tall is the Space Needle if the CN Tower stands at 553 meters high and it is taller than the Space Needle by 369 meters?
553 – 369 = 184 The Space Needle in Seattle is 184 meters tall.
Emily collected eggs from the hen and put them into 303 baskets. She put 28 eggs into each basket. How many eggs did Emily collect?
303 x 28 = 8,484 Emily collected 8,484 eggs
Marian’s friends were coming over that afternoon, so she made 480 bite-sized pretzels. If one serving is equal to 12 pretzels, how many servings of bite-sized pretzels was Marian able to prepare?
480 ÷ 12 = 40 Marian was able to prepare 40 servings of bite-sized pretzels
Lastly, Arya and Yana prepared the noodles that they will use for the pasta. They wanted to make the dish interesting so while Arya made 4/11 kg of macaroni; Yana prepared 6/11 kg of fettuccine. How much pasta did they prepare in total?
4/11 + 6/11 = 10/11 They prepared a total of 10/11 kg of pasta